Dr. Dre tops Forbes list of highest-earning musicians, all thanks to his work in the field of headphones; Metallica officially owns its master recordings thanks to a clause in its 1994 record contract with Warner Music Group; and Jay-Z, Pussy Riot and … Psy (?!) are among Time magazine's "Persons of the Year" for 2012.

Morse code in popular music and Tricky and Martina Topley-Bird reunite

On this date in 1967, Floridian Psychedelic Folk band Pearls Before Swine (a precursor to contemporary so-called "Freak Folk") began the three-day sessions for its debut album, One Nation Underground. The album would become a moderate success, selling nearly a quarter of a million copies. One of the album's tracks, "(Oh Dear) Miss Morse," was the source of some controversy. The subversive chorus of the weird little song (essentially a banjo riff with some organ blips) consists of vocalist/songwriter Tom Rapp (and that organ) "singing" in Morse code the letters "F," "U," "C" and "K" (Dit Dit Dah Dit/Dit Dit Dah/Dah Dit Dah Dit/Dah Dit Dah).And they would have gotten away with it, too, if it weren't for some meddling kids! Famous New York DJ Murray the K was busted after playing the song on the air when a few smarty-pants Boy Scouts reportedly recognized the code and called in to complain about the veiled obscenity (or maybe brag that they figured it out). It's not the only song to feature secret Morse code messaging. Mike Oldfield's album Amarok (featuring, essentially, one hour-long track) came towards the end of his contract with Virgin Records in 1990. Oldfield sent a little note to his boss on the album; towards the end, there's a Morse code message that spells out "Fuck Off RB," referring to Virgin label chief Richard Branson. The Rush song "YYZ" from the 1981 album Moving Pictures also features Morse coding, in a pretty ingenious manner. Drummer Neil Pert's rhythm on the song is based on Morse for "YYZ." The letters weren't especially controversial, though — they were simply the code for Toronto's airport (Rush is from the area).Other instances of Morse code in popular music: Roger Waters' album Radio KAOS features several Morse messages; Kraftwerk used it throughout their 1975 track "Radioactivity" (it simply spells out the title); and The Clash's "London Calling" has choppy guitar feedback at the end of the song that spells out "S.O.S."Here's the Pearls Before Swing tune. NSFW (if you work for a former Boy Scout or telegraph expert).Born This Day: Musical movers and shakers sharing a May 7 birthday include late drummer for influential Rock bands New York Dolls and Johnny Thunders and the Heartbreakers, Jerry Nolan (1946); Disco diva ("Don't Leave Me This Way"), singer/songwriter and actress Thelma Houston (1946); masterful German Boogie Woogie pianist Axel Zwingenberger (1955); Motorhead guitarist Phil Campbell (1961); Swedish one-hit-wonder, son of Jazz legend Don Cherry and half-brother to Neneh Cherry, Eagle-Eye Cherry (1971); drummer for British Pop/Rock stars Arctic Monkeys, Matt Helders (1986); and British singer Martina Topley-Bird (1975).Topley-Bird is probably best known as a crucial part of Trip Hop pioneer Tricky's early (and biggest) success as vocalist on his classic album, 1995's Maxinquaye. The album made Tricky a Pop star, something that he admittedly was not prepared for and which drove him a little nuts. He recently told U.K.'s The Guardian that, going into the album's release, "I thought I'd be an underground artist. I had no idea it was going to do that and I was not ready for it." He says he spent much of the rest of his career trying to become more of a cult artist than a superstar. And he succeeded. Topley-Bird parted ways with Tricky in 1998 and has made a trio of solo album (and worked with Gorillaz and Massive Attack). But late last month, she rejoined Tricky in England to perform Maxinquaye in its entirety. Well, that was the plan, anyway. Tricky reportedly disappeared during parts of the performances, which didn't exactly live up the "play the full album" billing. In a review of the performance in Manchester, ClashMusic.com wrote that the Tricky concert ultimately became "the Martina Topley-Bird show, with the singer providing the only reliable musical seam throughout, in contrast to an erratic and seemingly disengaged Tricky." Here's Martina Topley-Bird's "Anything" from her acclaimed debut solo album, Quixotic.

Those prankster Brits are scheming to “fix” the No. 1 UK single at Christmastime once again. Last year, an online campaign allowed Rage Against the Machine’s 1992 track “Killing in the Name” to win. This year's John Cage's "4'33'" is in the running. The song is 4 minutes and 33 seconds of silence.